function [ HMSstr ] = StoHMS( secs )
%StoHMS converts float(seconds) to str(HH:MM:SS)
%   Detailed explanation goes here
h=floor(secs/3600);
secs=mod(secs, 3600);
m=floor(secs/60);
secs=mod(secs, 60);
s=round(secs);
HMSstr=sprintf('%02u:%02u:%02u',h,m,s);
end

